Home / 13,669.60-18,872.40-8,894.08

Finding the Fourth Proportional to 13,669.60, 18,872.40 and 8,894.08

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Solution

The fourth proportional to 13,669.60, 18,872.40 and 8,894.08 is: 12,279.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.60 : 18,872.40 = 8,894.08 : x
  2. Step 2: Convert to fraction form
    13,669.60/18,872.40 = 8,894.08/x
  3. Step 3: Cross multiply
    13,669.60x = 18,872.40 × 8,894.08
  4. Step 4: Simplify right side
    13,669.60x = 167,852,635.39
  5. Step 5: Solve for x
    x = 167,852,635.39/13,669.60
  6. Step 6: Final answer
    x = 12,279.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.